CN216280059U - Double-acting stop mechanism of pipe end plugging device - Google Patents
Double-acting stop mechanism of pipe end plugging device Download PDFInfo
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- CN216280059U CN216280059U CN202122867114.4U CN202122867114U CN216280059U CN 216280059 U CN216280059 U CN 216280059U CN 202122867114 U CN202122867114 U CN 202122867114U CN 216280059 U CN216280059 U CN 216280059U
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- pipe
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Abstract
The utility model discloses a double-acting stop mechanism of a pipe end plugging device, which comprises an outer stop part and an inner stop part; the outer stop part comprises a lantern ring I, a lantern ring II, a connecting rod I, a connecting rod II, a lantern ring pipe seat I, a lantern ring pipe seat II and an outer locking and pressing block; the inner stop part comprises a lantern ring III, a lantern ring IV, a lantern ring driving shaft and an inner locking pressing block. The distance between the lantern ring I and the lantern ring II is adjusted by controlling the action of the lantern ring distance adjusting mechanism, so that the connecting rod I is driven by the connecting rod II to realize the diameter-changing operation of a track circle formed by a plurality of external locking and pressing blocks, the distance between the lantern ring III and the lantern ring IV is adjusted by rotating the lantern ring driving shaft, the inner locking and pressing block is driven by the connecting rod III to realize the diameter-changing operation of the track circle formed by a plurality of internal locking and pressing blocks, the inner locking and pressing block and the outer locking and pressing block can be correspondingly and tightly pressed on the pipe wall, and the deformation of the pipe orifice can be avoided on the premise of realizing the stable positioning of the pipe end plugging device.
Description
Technical Field
The utility model relates to a double-acting stop mechanism, in particular to a double-acting stop mechanism of a pipe end plugging device suitable for plugging a pipe end of a pipeline, and belongs to the technical field of pipeline plugging machines.
Background
The pipe orifice is often required to be temporarily blocked in the process of pipeline construction or rush repair, so that sundries and dust are prevented from entering the pipeline. The traditional method for plugging the pipe end of the pipeline is to weld a steel plate on the pipe orifice, the welding mode is adopted for tight sealing, welding equipment is needed, the steel plate can be cut off only through gas welding after sealing, time and labor are wasted, the pipe orifice can be damaged, and meanwhile, the welding mode cannot be applied to a non-metal pipeline, so that the traditional welding mode in the prior art is gradually replaced by a mode of plugging water by utilizing a pipeline plugging air bag.
The working principle of the water plugging air bag is that the pipeline plugging air bag made of high-quality rubber is utilized to expand through an inflation method, when the gas pressure in the water plugging air bag meets the specified requirement, the water plugging air bag fills the whole pipeline section, and water leakage is plugged by utilizing the friction force generated by the wall of the pipeline plugging air bag and the pipeline, so that the aim of no water seepage in a target pipeline section is fulfilled. The pipe plugging device for positioning and installing the plugging air bag usually comprises a stop mechanism, and the stable positioning connection of the pipe plugging device and the pipe end is realized through the stop mechanism. The stop mechanism of the tube end plugging device in the prior art usually adopts a single acting force along the radial direction of the tube end generated by mechanical multi-point support to carry out clamping positioning support, and the mode of the single acting force is easy to cause the deformation of the tube opening, especially aiming at a non-metal pipeline made of PE material, even to cause the tearing of the tube opening.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a double-acting stop mechanism of a pipe end plugging device, which can avoid the deformation of a pipe orifice on the premise of realizing the stable positioning of the pipe end plugging device and is particularly suitable for the pipe end plugging device.
In order to achieve the above object, the double-acting stop mechanism of the pipe end plugging device comprises an outer stop part and an inner stop part;
the outer locking part comprises a lantern ring I and a lantern ring II which are coaxially arranged, a plurality of connecting rods I are uniformly hinged on the lantern ring I along the circumferential direction of the lantern ring I, the connecting rods I are obliquely arranged forwards, a plurality of connecting rods II are hinged on the lantern ring II corresponding to the positions of the connecting rods I, the end parts of the connecting rods II are hinged with the rod body of the connecting rods I, the lantern ring I is sleeved on the lantern ring tube seat I, a hand wheel I is coaxially and fixedly arranged at the rear end of the lantern ring tube seat I, the lantern ring II is sleeved on the lantern ring tube seat II, a hand wheel II is coaxially and fixedly arranged at the rear end of the lantern ring tube seat II, the lantern ring tube seat I is axially positioned and coaxially sleeved on the lantern ring tube seat II, a lantern ring interval adjusting mechanism is arranged between the lantern ring I and the lantern ring II, and an outer locking pressing block is further hinged at the front end of the connecting rod I;
the inner locking part comprises a lantern ring III and a lantern ring IV which are coaxially and symmetrically arranged in the front-back direction and a lantern ring driving shaft which is coaxially connected onto the lantern ring III and the lantern ring IV in a penetrating mode, a plurality of connecting rods III are respectively hinged to the lantern ring III and the lantern ring IV along the circumferential direction of the lantern ring III and the lantern ring IV in a corresponding and uniformly distributed mode, the end portions of the connecting rods III which are symmetrically arranged in the front-back direction are respectively hinged to an inner locking and pressing block which is arranged between the lantern ring III and the lantern ring IV in a matched mode, the inner locking and pressing block is just opposite to an outer locking and pressing block along the radial direction of the lantern ring driving shaft, the lantern ring driving shaft is arranged and connected with the lantern ring III and the lantern ring IV through an outer thread section which is symmetrically arranged in the front-back direction and is opposite to the thread rotating direction, the rear end of the lantern ring driving shaft coaxially penetrates through a lantern ring pipe base II, and a hand wheel III is arranged at the rear end of the lantern ring driving shaft which is axially positioned with the lantern ring pipe base II.
As a further improvement scheme of the utility model, a positioning sliding guide mechanism arranged along the axial direction of the lantern ring II is also arranged between the lantern ring II and the lantern ring IV.
As an embodiment of the positioning, sliding and guiding mechanism, the positioning, sliding and guiding mechanism comprises a positioning and guiding column fixedly arranged on the front end face of the lantern ring II and a positioning and guiding through hole correspondingly arranged on the lantern ring IV in a matched mode or on the lantern ring IV and the lantern ring III in a matched mode.
As a further improvement of the utility model, the front part of the connecting rod I is provided with a bending part which is bent inwards in the radial direction.
As an embodiment of the lantern ring spacing adjusting mechanism, the lantern ring I is fixedly sleeved on the lantern ring pipe seat I, and the lantern ring II is sleeved on the lantern ring pipe seat II through threaded connection.
As another embodiment of the lantern ring spacing adjusting mechanism, the lantern ring I is sleeved on the lantern ring pipe seat I through threaded connection, and the lantern ring II is fixedly sleeved on the lantern ring pipe seat II.
Compared with the prior art, when the double-acting stop mechanism of the pipe end plugging device is installed on the pipe end plugging device for use, the action of the lantern ring spacing adjusting mechanism is controlled by rotating the hand wheel I or the hand wheel II, the spacing between the lantern ring I and the lantern ring II can be adjusted, the connecting rod I is driven by the connecting rod II to realize the diameter changing operation of a track circle formed by a plurality of external locking and pressing blocks, the spacing between the lantern ring III and the lantern ring IV which are symmetrically arranged front and back can be adjusted through an external thread section by rotating the hand wheel III, and the inner locking and pressing block is driven by the connecting rod III to realize the diameter changing operation of the track circle formed by a plurality of inner locking and pressing blocks; after the pipe end is sleeved in the gap between the inner locking pressing block and the outer locking pressing block, the inner locking pressing block and the outer locking pressing block can be correspondingly and tightly pressed on the pipe wall by controlling the diameter reducing operation of the track circle formed by the plurality of outer locking pressing blocks and the diameter expanding operation of the track circle formed by the plurality of inner locking pressing blocks, and the double-acting locking mechanism of the pipe end plugging device can be ensured to avoid the deformation of the pipe orifice on the premise of realizing the stable positioning of the pipe end plugging device due to the coaxial installation of the pipe end.
Drawings
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a schematic cross-sectional structural view of the present invention;
FIG. 3 is a schematic three-dimensional view of the outer stop portion of the present invention;
fig. 4 is a three-dimensional structural view of the inner stop portion of the present invention.
In the figure: 1. the outer locking part 11, the lantern ring I, 12, the lantern ring II, 121, the positioning guide post 13, the connecting rod I, 14, the connecting rod II, 15, the lantern ring tube seat I, 151, the hand wheel I, 16, the lantern ring tube seat II, 161, the hand wheel II, 17, the outer locking pressing block 2, the inner locking part 21, the lantern ring III, 22, the lantern ring IV, 23, the connecting rod III, 24, the inner locking pressing block 25, the lantern ring driving shaft 251, the outer thread section 252 and the hand wheel III.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings (hereinafter, the axial direction of the double-acting stop mechanism of the pipe end stopper will be described as the front and rear directions).
As shown in fig. 1 and 2, the double-acting stop mechanism of the pipe end stopper comprises an outer stop part 1 and an inner stop part 2.
As shown in fig. 3, the outer locking part 1 comprises a lantern ring i 11 and a lantern ring ii 12 which are coaxially arranged, a plurality of connecting rods i 13 are uniformly hinged on the lantern ring i 11 along the circumferential direction, the connecting rods i 13 are obliquely arranged forwards, a plurality of connecting rods ii 14 are hinged on the lantern ring ii 12 corresponding to the connecting rods i 13, the end parts of the connecting rods ii 14 are hinged with the rod body of the connecting rods i 13, the lantern ring i 11 is sleeved on a lantern ring tube seat i 15, a hand wheel i 151 is coaxially and fixedly arranged at the rear end of the lantern ring tube seat i 15, the lantern ring ii 12 is sleeved on a lantern ring tube seat ii 16, a hand wheel ii 161 is coaxially and fixedly arranged at the rear end of the lantern ring tube seat ii 16, the lantern ring tube seat i 15 is axially positioned and coaxially sleeved on the lantern ring tube seat ii 16, and a lantern ring interval adjusting mechanism driven by the lantern ring tube seat i 15 or the lantern ring tube seat ii 16 is arranged between the lantern ring i 11 and the lantern ring ii 12, the front end of the connecting rod I13 is also hinged with an outer locking pressing block 17.
As shown in fig. 4, the inner stop part 2 includes a collar iii 21 and a collar iv 22 which are coaxially and symmetrically arranged in front and back, and a collar driving shaft 25 coaxially penetrating the collar iii 21 and the collar iv 22, the collar iii 21 and the collar iv 22 are respectively and uniformly hinged with a plurality of connecting rods iii 23 along the circumferential direction, the end parts of the connecting rods iii 23 symmetrically arranged in front and back are respectively hinged with an inner locking compression block 24 which is arranged between the collar iii 21 and the collar iv 22 in a matching manner, the inner locking compression block 24 is arranged along the radial direction of the collar driving shaft 25 and is directly opposite to the outer locking compression block 17, the collar driving shaft 25 is symmetrically arranged in front and back, and the external thread section 251 with opposite thread screwing directions is connected with the lantern ring III 21 and the lantern ring IV 22 in an installing mode, the rear end of the lantern ring driving shaft 25 coaxially penetrates through the lantern ring pipe seat II 16, and a hand wheel III 252 is arranged at the rear end of the lantern ring driving shaft 25 which is axially positioned with the lantern ring pipe seat II 16.
When the double-acting stop mechanism of the pipe end plugging device is installed on the pipe end plugging device for use, the action of the lantern ring spacing adjusting mechanism is controlled by rotating a hand wheel I151 or a hand wheel II 161, so that the spacing between a lantern ring I11 and a lantern ring II 12 can be adjusted, further, the connecting rod I13 is driven by a connecting rod II 14 to realize the diameter changing operation of a track circle formed by a plurality of outer locking pressing blocks 17, the spacing between a lantern ring III 21 and a lantern ring IV 22 which are symmetrically arranged front and back can be adjusted by rotating a hand wheel III 252 through an outer thread section 251, and further, the diameter changing operation of the track circle formed by a plurality of inner locking pressing blocks 24 is realized by driving an inner locking pressing block 24 through a connecting rod III 23; after the pipe end is sleeved in the gap between the inner locking pressing block 24 and the outer locking pressing block 17, the inner locking pressing block 24 and the outer locking pressing block 17 can be correspondingly and tightly pressed on the pipe wall by controlling the diameter reducing operation of the track circle formed by the plurality of outer locking pressing blocks 17 and the diameter expanding operation of the track circle formed by the plurality of inner locking pressing blocks 24, and the double-acting locking mechanism of the pipe end plugging device can be ensured to avoid the deformation of the pipe orifice on the premise of realizing the stable positioning of the pipe end plugging device due to the coaxial installation of the pipe end.
In order to ensure that the inner locking pressing block 24 always positively locks the pressing block 17 outwards along the radial direction of the lantern ring driving shaft 25 when the hand wheel iii 252 is rotated, as a further improvement of the present invention, a positioning sliding guide mechanism arranged along the axial direction of the lantern ring ii 12 is further arranged between the lantern ring ii 12 and the lantern ring iv 22, the positioning sliding guide mechanism can be a positioning guide post 121 fixedly arranged on the front end surface of the lantern ring ii 12 and a positioning guide through hole structure correspondingly arranged on the lantern ring iv 22 or correspondingly arranged on the lantern ring iv 22 and the lantern ring iii 21 as shown in fig. 1 to 3, or a positioning guide post 121 fixedly arranged on the front end surface of the lantern ring iv 22 and a positioning guide through hole structure correspondingly arranged on the lantern ring ii 12, the radial positioning of the lantern ring IV 22 relative to the lantern ring II 12 can be realized through the positioning sliding guide mechanism, and further the position of the inner locking pressing block 24 which is always right opposite to the outer locking pressing block 17 is realized.
In order to achieve a better compaction effect of the outer locking pressing block 17, as a further improvement of the utility model, a bending part which is bent inwards in the radial direction is arranged at the front part of the connecting rod I13, and the outer locking pressing block 17 is hinged at the front end of the bending part.
As an embodiment of the lantern ring spacing adjusting mechanism, a lantern ring I11 is fixedly sleeved on a lantern ring pipe seat I15, a lantern ring II 12 is sleeved on a lantern ring pipe seat II 16 through threaded connection, and a hand wheel II 161 is rotated to control the lantern ring II 12 to move back and forth relative to the lantern ring I11 so as to adjust the spacing between the lantern ring I11 and the lantern ring II 12.
As another embodiment of the lantern ring spacing adjusting mechanism, the lantern ring I11 is sleeved on the lantern ring pipe seat I15 through threaded connection, the lantern ring II 12 is fixedly sleeved on the lantern ring pipe seat II 16, and the lantern ring I11 is controlled to move back and forth relative to the lantern ring II 12 through rotating the hand wheel I151, so that the spacing between the lantern ring I11 and the lantern ring II 12 is adjusted.
Claims (6)
1. A double-acting stop mechanism of a pipe end plugging device is characterized by comprising an outer stop part (1) and an inner stop part (2);
the outer stop part (1) comprises a lantern ring I (11) and a lantern ring II (12) which are coaxially arranged, a plurality of connecting rods I (13) are uniformly and hinged on the lantern ring I (11) along the circumferential direction of the lantern ring I, the connecting rods I (13) are obliquely arranged forwards, a plurality of connecting rods II (14) are hinged on the lantern ring II (12) corresponding to the positions of the connecting rods I (13), the end parts of the connecting rods II (14) are hinged with a rod body of the connecting rods I (13), the lantern ring I (11) is sleeved on the lantern ring tube seat I (15), a hand wheel I (151) is coaxially and fixedly arranged at the rear end of the lantern ring tube seat I (15), the lantern ring II (12) is sleeved on the lantern ring tube seat II (16), a hand wheel II (161) is coaxially and fixedly arranged at the rear end of the lantern ring tube seat II (16), the lantern ring tube seat I (15) is coaxially positioned and sleeved on the lantern ring tube seat II (16), and an adjusting mechanism for the distance between the lantern ring I (11) and the lantern ring II (12), the front end of the connecting rod I (13) is also hinged with an outer locking pressing block (17);
the inner stop part (2) comprises a lantern ring III (21) and a lantern ring IV (22) which are coaxially and symmetrically arranged in front and back, and a lantern ring driving shaft (25) coaxially connected onto the lantern ring III (21) and the lantern ring IV (22) in a penetrating mode, a plurality of connecting rods III (23) are correspondingly and uniformly hinged to the lantern ring III (21) and the lantern ring IV (22) in the circumferential direction, the end parts of the connecting rods III (23) symmetrically arranged in front and back are respectively hinged to an inner locking compression block (24) arranged between the lantern ring III (21) and the lantern ring IV (22) in a matched mode, the inner locking compression block (24) is arranged on an outward locking compression block (17) in the radial direction of the lantern ring driving shaft (25), the lantern ring driving shaft (25) is connected with the lantern ring III (21) and the lantern ring IV (22) in an installing mode through outer thread sections (251) which are symmetrically arranged in front and back and are opposite in thread rotating directions, and the rear end of the lantern ring driving shaft (25) penetrates through a coaxial lantern ring base II (16), And a hand wheel III (252) is arranged at the rear end of the lantern ring driving shaft (25) which is axially positioned with the lantern ring pipe seat II (16).
2. A double-acting stop mechanism of a tube end plugging device according to claim 1, characterized in that a positioning sliding guide mechanism arranged along the axial direction of the lantern ring II (12) is further arranged between the lantern ring II (12) and the lantern ring IV (22).
3. The double-acting stop mechanism of the pipe end plugging device according to claim 2, wherein the positioning sliding guide mechanism comprises a positioning guide column (121) fixedly arranged on the front end face of the lantern ring II (12) and a positioning guide through hole correspondingly arranged on the lantern ring IV (22) in a matched mode or on the lantern ring IV (22) and the lantern ring III (21) in a matched mode.
4. A double action stop mechanism for a tube end stopper according to claim 1, 2 or 3 wherein the front part of the connecting rod i (13) is provided with a bent part bent inward in the radial direction.
5. The double-acting stop mechanism of the pipe end plugging device according to claim 1, 2 or 3, wherein the lantern ring I (11) is fixedly sleeved on the lantern ring pipe seat I (15), and the lantern ring II (12) is sleeved on the lantern ring pipe seat II (16) through threaded connection.
6. The double-acting stop mechanism of the pipe end plugging device according to claim 1, 2 or 3, wherein the lantern ring I (11) is sleeved on the lantern ring pipe seat I (15) through threaded connection, and the lantern ring II (12) is fixedly sleeved on the lantern ring pipe seat II (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122867114.4U CN216280059U (en) | 2021-11-22 | 2021-11-22 | Double-acting stop mechanism of pipe end plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122867114.4U CN216280059U (en) | 2021-11-22 | 2021-11-22 | Double-acting stop mechanism of pipe end plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216280059U true CN216280059U (en) | 2022-04-12 |
Family
ID=81035141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122867114.4U Active CN216280059U (en) | 2021-11-22 | 2021-11-22 | Double-acting stop mechanism of pipe end plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216280059U (en) |
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2021
- 2021-11-22 CN CN202122867114.4U patent/CN216280059U/en active Active
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